Ersa Soldering Iron Tips Soldering tip 632098 - Ersa 0842CD, The Ersa 842 CD soldering tip is chisel-shaped with a tip size of 2.2 mm, designed for precision soldering tasks. This high-quality tip from Ersa is ideal for electronic and circuit board work. It is commonly used in soldering applications where accuracy and efficiency are required. Ersa 0842CD Soldering Tip Chisel-shaped 2.2mm High Heat Conductivity